Crimson Team Final Report

STS.471/16.895/ESD.30 Engineering Apollo Crimson Team Final Report May 16th, 2007 Architecture Human Factors Friedman Brzezinski Gay Graham Leybovich Needham Yamamoto Operations GNC Bachmann Baker Fanchiang Brunet Gillespie Houghton Panish Table of Contents List of Figures ................................................................................................................................. ii List of Tables ................................................................................................................................. iii List of Acronyms ........................................................................................................................... iv Introduction ..................................................................................................................................... 1 Scope ........................................................................................................................................... 2 Goals ........................................................................................................................................... 2 Assumptions ................................................................................................................................ 2 Lunar Landing Procedure Overview ............................................................................................... 3 The Apollo Lunar Landing Procedure ........................................................................................ 3 Team Crimson Lunar Landing Procedure ................................................................................... 4 Baseline Lunar Architecture: ESAS LSAM ................................................................................... 6 Initial Mass Estimate....................................................................................................................... 8 Components of the Lunar Modules................................................................................................. 9 Propulsion ................................................................................................................................... 9 Communication ......................................................................................................................... 13 Navigation ................................................................................................................................. 14 Structures .................................................................................................................................. 14 Other Systems ........................................................................................................................... 16 Improvements from Apollo Structure ....................................................................................... 16 Guidance, Navigation, and Control .............................................................................................. 16 Navigation ................................................................................................................................. 19 Guidance ................................................................................................................................... 20 Controller .................................................................................................................................. 20 Trajectory and Approach .............................................................................................................. 22 Human Factors .............................................................................................................................. 23 Automation ............................................................................................................................... 24 Crew Roles ................................................................................................................................ 26 Interfaces ................................................................................................................................... 28 Training ..................................................................................................................................... 31 The Role of Mission Control ........................................................................................................ 32 Abort Procedures .......................................................................................................................... 33 Abort Initiation.......................................................................................................................... 35 Go/No Go Decision................................................................................................................... 36 Baseline Cost Estimate ................................................................................................................. 37 Conclusion .................................................................................................................................... 39 Appendix A: Human Factors ........................................................................................................ 41 Appendix B: Mass Breakdown ..................................................................................................... 43 Appendix C: References ............................................................................................................... 44 i List of Figures Figure 1- Comparison between the Apollo lunar landing (black) and the Team Crimson lunar landing (red) ............................................................................................................................ 6 Figure 2 - LSAM Architecture ........................................................................................................ 7 Figure 3 - Mass breakdown of LSAM descent stage dry mass [22]………………………………8 Figure 4 - Schematics showing equilibrium between propellant pressure and in-wall stresses....15 Figure 5 - Guidance, Navigation and Control System Overview ................................................. 18 Figure 6 - Navigation System Overview ...................................................................................... 19 Figure 7 - Guidance System Overview ......................................................................................... 20 Figure 8 - Control System Overview ............................................................................................ 21 Figure 9 - Orbital Trajectory ......................................................................................................... 22 Figure 10 - Yerkes-Dodson curve and Apollo comic illustrating the two extremes of possible astronaut involvement in controlling a space capsule. .......................................................... 25 Figure 11 - Sheridan’s 10 Levels of Automation of Decision [44] with the human functions and roles in landing the lunar lander............................................................................................ 25 Figure 12 - Cockpit configuration of displays for the landing pilot (left seat) and systems pilot (right seat). ............................................................................................................................ 30 Figure 13 - Abort procedures for different phases of the lunar landing ....................................... 34 Figure 14 - Comparison of Apollo Costs to Exploration Vision .................................................. 38 Figure 15 - Costs based on data from Georgia Tech. ................................................................... 39 Figure 16 - Photograph of the "dials and gages" of the Apollo Lunar Module. ........................... 41 Figure 17 - Layout of the Apollo Lunar Module interfaces. ......................................................... 41 Figure 18 - Preliminary Lunar Access H-SI Concept ................................................................... 42 ii List of Tables Table 1 - Propellant Choices ........................................................................................................... 9 Table 2- Comparison between possible space structural materials in terms of specific strength and CTE [31, 32]................................................................................................................... 14 Table 3 - Comparison of the propellant and payload masses and their fractions to the total mass of Apollo and Crimson descent stage. .................................................................................. 16 iii List of Acronyms BIT………………………………… Built in Test CEV………………………………... Crew Exploration Vehicle CommPro………………………….. Communications Procedure Crewmember CRM………………………………. Crew Resource Management CTE…………………………….….. Coefficient of Thermal Expansion DSN……………………………….. Deep Space Network ECL………………………………... Electronic Checklist ESAS………………………………. Exploration Systems Architecture Study FAF………………………………... Final Approach Fix GRC……………………………….. Glenn Research Center HDA……………………………….. Hazard Detection Avoidance HF…………………………………. Human Factors HGA……………………………….. High Gain Antenna IHASM…………………………….. Intelligent Health and Safety Monitoring System LIDAR…………………………….. Laser Imaging Detection and Ranging LLTV……………………………… Lunar Landing Training Vehicle LM………………………………… Lunar Module (Apollo) LOI………………………………... Lunar Orbit Insertion LOX……………………………….. Liquid Oxygen LP………………………………….

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